AlignLayout vertical alignment fix
AlignLayout JavaDoc added
AlignLayout constants fix
Checked nodes optimization
Merge remote-tracking branch 'origin/master'
FileUtils writeStringToFile method added
Async tree data can now be provided asynchronously in AsyncTreeDataProvider
AsyncUniqueNode memory usage improvements
Childs load failed state and listener methods added
LanguageManager setLanguage method will now set default language when called before manager initialization
Async childs load fail representation feature added
#49 - WebFileChooser size issue with empty initial folder fixed